Comparative Fault Analysis in an Active Distribution Network

Abstract

The presented research paper proposes fault analysis of an active distribution network (ADN). In the proposed work, a distributed generation (DG) oriented distribution network with few loads and generator buses are considered. Now, these ADNs are caused to have severe faults due to presence of DG system and it's uncertain penetration of power to the main grid. These generate major faults in the network however it's analysis are extremely limited. Hence, in this work different case studies on two types of major faults like line to ground (LG) fault and double line to ground (LLG) fault are demonstrated by formulating an ADN using Power World Simulator. Here, faults are injected at certain locations in the simulation network. After fault injection, the fault parameters in terms of phase voltages, phase angles and line currents are observed and comparatively analyzed. Here, it has been noticed that the fault parameters in the load bus have been found most severe compared to the fault parameters in the DG connected bus and the generator bus.